Iwo mabhengi ebhiriji uye baseplate ndiwo akakosha zvikamu uye zvakakosha zveBailey simbi bhiriji. Nekuti Bailey Bridge yakakamurwa kuita 321 simbi bhiriji uye HD200 simbi bhiriji, mabhengi ebhiriji uye baseplate anogona zvakare kukamurwa kuita 321 mhando uye mazana maviri mhando.
Type 321 abutment: Iyo yekupedzisira column yebhiriji inotsigirwa pane axle danda reabutment. Iyo axle danda yakakamurwa kuita zvikamu zvitatu. Kana bhiriji remutsara mumwe chete ramiswa, iyo truss end column inotsigirwa pachikamu chepakati cheaxle danda; kana bhiriji rine mitsara miviri yamiswa, mabhiriji maviri anoshandiswa Chigaro uye mbiru dzekupedzisira zvinotsigirwa zvakateerana pachikamu chepakati chematanda maviri eekisi eiyo abutment. Kana mitsara mitatu yemabhiriji akamiswa, maviri abutments achiri kushandiswa. Inotsigirwa pamativi maviri emativi echitsiko cheekisero cherimwe bhiriji.
Type 321 baseplate: Iyo baseplate inoshandiswa kuisa bhiriji abutment uye zvakaenzana kugovera mutoro kubva pabhiriji abutment panheyo. Nhamba 1, 2, uye 3 dzakatemerwa pamupendero webhesi, izvo zvinoteedzana zvichiratidza nzvimbo yepakati pebhiriji kusungirirwa kune imwechete-mutsara, kaviri-mutsara, uye matatu-mitsara mabhiriji. Kune rumwe rutivi rwechigaro chechigaro chakatemerwa nzvimbo yepakati pakanangana nebhiriji.
200 mhando yebhiriji inotakura, iyo baseplate yakafanana ne321 mhando, asi chimiro muviri mumwechete, uye imwe neimwe bhiriji inotakura inoenderana nebaseplate.